Improvement in sewing-machine shuttles



H. J. NOTT. Sewing-Machine Shuttles.

No. 195,944.- Patented Oct. 9, 1877'.

(@Qsas: INVENTOR:

. BY J6 ATTORNEYS.

N. PETERS. FHOTO-LITHOGRAPHER WASHINGTON. D O.

UNITED STATES PATENT OFFICE.

HENRY J. NOTT, OF ST. MARYS, TEXAS.

IMPROVEMENT IN SEWING-MACHINE SHUTTLES.

Specification forming part of Letters Patent No. 195,944, dated October9, 1877; application filed June 30, 1877.

To all whom it may concern:

Be it known that I, HENRY J. No'r'r, of St. Marys, in the county ofRefugio and State of Texas, have invented a new and ImprovedSewing-Machine Shuttle, of which the following is a specification:

Figure 1 is a side elevation of my improved shuttle with the capremoved. Fig. 2 is a detail view of the cap. Fig. 3 is a longitudinalsection on line as w in Fig. 1.

Similar letters of reference indicate corresponding parts. A

My invention consists in'combining with a shuttlecase a cap having ahook and catch for securing it to the shuttle, and a projection thatholds the bobbin in place.

The object of the invention is to simplify the operation of shiftingbobbins and of threading sewing-machine shuttles.

In the drawing, A is the case or body of the shuttle, which is roundedat its point, and grooved internally to receive the projection a, andexternally to receive the hook b, both of which project from the cap B,which is fitted to the face or open side of the shuttle-body, and isprovided with a notched stud, c, that is engaged by the end of thecheck-spring d.

At the inner portion of the internal groove a bearing is formed for theend of the bobbinspindle, which is retained by the projection a.

The holes 0 in the side of the shuttle, through which the thread passesfrom the bobbin to give it the required tension, are extended laterallyto the edge of the shuttle-body, so that thread may be placed on themsidewise.

When the cap B is secured to the shuttle body, the thread is preventedfrom escaping from the holes 0. The edge of the shuttle-body oppositethe longitudinal slot in the lower side of the shuttle is cut away at f,to permit the thread to pass when the cap B is in place.

The bobbin is put into the shuttle by first placing one end of itsspindle in the heel of the shuttle, and then dropping the other end intothe groove in the point of the shuttle. It is retained in place by theprojection a, and revolves freely, being pressed by no springs, eitherupon its spindle or upon its sides. The tension is, therefore, at alltimes equal, being controlled entirely by the friction of the thread inthe holes in the shuttle-body.

It will be seen that the arrangement of the holes 0 and cap B renders ita simple matter to thread the shuttle.

Having thus described my invention, I claim as new and desire to secureby Letters Patent The cap B, having spring d, the projection a, hook I),and notched stud c, in combination with the shuttlebody A, having thegrooves for receiving the projection a and hook 1), substantially asshown and described.

HENRY JUNIUS NOTT, M. l).

Witnesses:

GEo. HOWARD, Gr. It. RATCHFORD.

